Sorry for the additional thread. The other similar one seems dedicated to a conflict with PCTools. I think this problem is more widespread than that. I am running Win7 x64 and was running Avast Free 5.x. No other security software - just Windows' firewall. Yesterday I did Windows update for SP1. Upon reboot, I had no browser internet access. Email was fine. If I disable shields, all is fine. Re-enable shields, browser accesses net again.
Updated to 6.0.1000 (I think the version is correct number) - no change in above. Udated to 6.0.1035 - again no change.
Interesting that it can be fixed by disabling shields then re-enabling them.
I have read a number of posts from users that did an Avast repair, a removal and reinstall - in most cases, the report is that this did not fix it.
Clearly something changed in SP1 that is interacting with Avast in a negative way.
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